February 24th, 2011, 10:15
February 24th, 2011, 12:47
February 24th, 2011, 12:57
February 24th, 2011, 17:18
Chico wrote:The drive spins up immeditly with no alarming sounds or clicks
Chico wrote:but isn't instantly recognized by windows XP. Then after around 30secs windows XP makes it usual "usb-device-connected-sound" and the drive makes some repeated clicks. After a while a drive pops up in the "My Computer" window, but it shows up as a RAW drive, with no informations whatsoever.
Chico wrote:I can write down the exact error messages on ubuntu, if you like.
Chico wrote:So I tried using Spinrite.
Chico wrote:So I tried using Seatools from Seagate. When doing a basic test, it blocks after 10%, when doing the long one it says that the drive is damaged.
Chico wrote:Could it be a firmware issue?
Chico wrote:Bad blocks?
Chico wrote:Parked heads?
Chico wrote:I can try to get the same drive with same FW and transplant the platters
Chico wrote:We can't obviously afford to pay for professional services that take 100s of euros/ dollars.![]()
Chico wrote:I monitor SMART information often via CrystalDiskInfo and never spotted anything wrong or any bad sectors.
Chico wrote:The drive is still under warranty from Seagate until 2013 too.
pohere wrote:You should stop now. You have some major damage on this HDD. You best bet if you want to continue on is to image this drive with maybe dd_rescue. Then you can go with a DR recovery program and see if you can find any data on it at all. But you will need to find an adaptor and put this one your PC in order to do this one. I would not try and continue on playing around with this drive in that conditions. Image it ASAP.
Chico wrote:Thanks for your advice. But how can I image the drive if I can't access it from anywhere? I'll have a look at this dd_rescue.
I know the DD commande from GNU/Linux but I don't understand how I can achieve this if I can't mount the drive?
February 24th, 2011, 19:18
If you understood enough about how disk drives work, to even think about transplanting platters, you would not have asked this
This is perfectly normal - who told you that you would get a SMART warning before all drive problems?
Warranty does not cover data recovery or consequential losses (like loss of data).
Stop, stay calm, and read about dd_rescue (or the alternative called ddrescue). Google is your friend. You do NOT mount the original disk, before using them! So your problem with mounting the original disk (which is expected) makes no sense, because you are using the wrong procedure![]()
It does not matter that you say you know dd - you are not understanding what pohere told you.
Stop guessing and/or rushing, as you risk making a mistake and increasing the possibility of losing your data.
As you were told by pohere, the best DIY action you can try as the next step, is to clone the original disk (that means the raw disk e.g. /dev/sda or whatever it is called on your system - do not try to mount it!!!!!!) onto a new blank disk, which is at least the size of the full capacity of the original disk (250GB) using software which does not stop on unreadable sectors (e.g. dd_rescue or ddrescue when using Linux).
There are risks to this procedure - if you look back to some of my previous postings, I have explained them before.
I am unlikely to have time to assist further on this, but at least I was able to answer your problems about mounting the drive in Linux. Good luck - you'll need it.
February 24th, 2011, 19:28
poehere wrote:you will need to find an adaptor and put this one your PC in order to do this one. I would not try and continue on playing around with this drive in that conditions. Image it ASAP.
February 25th, 2011, 8:39
February 25th, 2011, 9:09
Yea, Check the drive in Mhdd.any suggestions?
February 25th, 2011, 9:41
February 25th, 2011, 10:01
February 25th, 2011, 10:23
Chico wrote:Actually, a lot of websites suggested using ddrescue rather than dd_rescue.
Chico wrote:During boot, first error messages:
[...]
Failed to mount '/dev/sda1': Input/output error
Chico wrote:it causes an abnormal delay on the POST, after which the drive is recognized.
[...]
After a while a drive pops up in the "My Computer" window
Chico wrote:ubuntu@ubuntu:~$ sudo ddrescue -r 3 -v /dev/sda /dev/sdb logfile.log
February 25th, 2011, 12:44
February 25th, 2011, 15:41
February 25th, 2011, 23:09
Chico wrote:But I also understand that all of the mounting problems are irrelevant as what I'm trying to do is copy the drive with dd, without mounting it. Is this correct?
Chico wrote:I have thought of something, please tell me if it's completely nonsense. Could this be a problem with the partition table
[...]
Please let me know if there is any chance this might work.
Chico wrote:Otherwise, Vulcan, would you be so kind to elaborate more on what you stated, when you have the time?
- attempting a reverse clone; and/or
- preventing all ddrescue retries and "splitting" for at least one pass of an attempted clone; and/or
- using raw access (bypassing the Linux kernel cache) to prevent extra reads (and retries) being done by the kernel.
What exactly is this and how can I try these things?
February 26th, 2011, 5:38
February 28th, 2011, 13:34
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